//作业
import java.util.*;
import java.io.*;
public class Main {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        while (scanner.hasNextInt()) {
            int x = scanner.nextInt();
            int y = scanner.nextInt();
            int z = scanner.nextInt();
            Sub sub = new Sub(x, y, z);
            System.out.println(sub.calculate());
        }
    }


    public static void main1(String[] args) {
        A a0=new A();
        A a1=new B();
        A a2=new C();
    }

}
class A{}
class B extends A{}
class C extends B{}

class Base2 {
    Base2() {
        System.out.print("base");
    }
}
class Alpha extends Base2 {

    public static void main2( String[] args ) {
        new Alpha();//1
        //调用父类无参的构造方法
        new Base2();//2
        //输出basebase
    }
}
class Base1{
    public Base1(String s){
        System.out.print("B");
    }
}

//class Derived extends Base1{
//    public Derived (String s) {  //编译错误
//        System.out.print("D");
//    }
//    public static void main(String[] args){
//        new Derived("C");
//    }
//}

class X{
    Y y=new Y();//1
    public X(){//2
        System.out.print("X");
    }
}
class Y{
    public Y(){//3
        System.out.print("Y");
    }
}
class Z extends X{
    Y y=new Y();//4
    public Z(){//5
        System.out.print("Z");
    }
    public static void main3(String[] args) {
        new Z();
    }
}

//有父类Base，内部定义了x、y属性。有子类Sub，
//继承自父类Base。子类新增了一个z属性，并且定义了calculate方法，
//在此方法内计算了父类和子类中x、y、z属性三者的乘积。请补全子类构造方法的初始化逻辑，使得该计算逻辑能够正确执行。
class Base {

    private int x;
    private int y;

    public Base(int x, int y) {
        this.x = x;
        this.y = y;
    }

    public int getX() {
        return x;
    }

    public int getY() {
        return y;
    }

}

class Sub extends Base {

    private int z;

    public Sub(int x, int y, int z) {
        super(x,y);
        this.z=z;
        //write your code here
    }

    public int getZ() {
        return z;
    }

    public int calculate() {
        return super.getX() * super.getY() * this.getZ();
    }

}